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Basic Diagnostic Procedure: Procedure

WARNING: This page is about a different car, the 2016 Subaru Outback and 2016 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTICS PROCEDURE

Step Check Yes No
1 PERFORM CUSTOMER INTERVIEW. 
Using the Check List for Interview, ask the customer the condition of how the trouble occurred. < Ref. to CHECK , Check List for Interview. >
Did you interview the customer? Go to step . Interview the customer. < Ref. to CHECK , Check List for Interview. >
2 CHECK SUBARU SELECT MONITOR COMMUNICATION. 
Using the Subaru Select Monitor, check whether communication to the telematics system can be executed.
NOTE: If the communication function of the Subaru Select Monitor cannot be executed properly, check the communication circuit. (Refer to "Communication for initializing impossible".) < Ref. to INSPECTION , Subaru Select Monitor. >
Is communication possible? Go to step . Check the communication circuit.
3 CHECK TELEMATICS. 
Using the Subaru Select Monitor, read DTC of the telematics system. < Ref. to OPERATION , Diagnostic Code(s) Display. >
NOTE: If DTC is detected, only RED LED will illuminate. For details, refer to "LED operation status list". < Ref. to LED ILLUMINATION STATUS LIST , CHECK, Check List for Interview. >
Is DTC displayed? Perform the diagnosis according to DTC. < Ref. to LIST , Diagnostic Code(s) Display. > Go to step .
4 CHECK DIAGNOSTICS WITH PHENOMENON. 
Check the list of Diagnostics with Phenomenon. < Ref. to DIAGNOSTICS WITH PHENOMENON . >
Does the symptom apply? Perform diagnosis according to the procedures in the diagnostics with phenomenon. Go to step .
5 CHECK TROUBLE PHENOMENON. 
  1. Perform the basic inspection and function check. < Ref. to INSPECTION , General Description. >
  2. Check the data communication module. < Ref. to CONTROL MODULE I/O SIGNAL . >
  3. Perform check of current data. < Ref. to READ CURRENT DATA . >
  4. Perform a unit check.
Was the trouble cause found? Perform the Clear Memory after repairing or replacing the cause of trouble. < Ref. to CLEAR MEMORY MODE . > System is normal.